Pandora's discovery algorithm is still top notch. But the rest is just awful: navigating to albums/artists, finding which words are clickable and not clickable, not being able to like or downvote some random sources (if it's a radio you can't like, or can - I can't remember and used to always get confused).
Hmm, maybe give it another try if it's been a while.
It's anecdotes, sure, but I do not experience these issues with the App or the Website.
You can Up/Down Vote on your "Radio" stations - but not your custom playlists (which makes sense).
Pandora offers custom playlists, offline listing, unlimited skips of radio, no ads on radio, "hit" playlits (curated by Pandora and other users) and more. It's radio/discovery algorithm is what kept me with Pandora, but all these features make it on-par with Spotify.